package thead;

public class Demo15 {
    public static final Object lock = new Object();
    public static int count = 0;
    public static void main(String[] args) throws InterruptedException {
        Thread t1 = new Thread(() -> {
            synchronized(lock) {
                for (int i = 0; i < 5000; i++) {
                    count++;
                }
            }
        });
        Thread t2 = new Thread(() -> {
            synchronized(lock) {
                for(int i = 0; i < 5000;i++) {
                    count++;
                }
            }
        });
        t1.start();
        t2.start();
        Thread.sleep(1000);
        System.out.println(count);
    }

}
